Elevator.



v H. A. HUMPHREY.

vELEWL'IJOR.

APPLICATION FILED JUNE 24, 1909.

Patented July 5, 1910.

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THE NORRIS PETERS co., WASHINGTON. n. c.

H. A. HUMPHREY.

ELEVATOR.

APPLICATION IILED JUNE 24, 1909.

Patented July 5, 1910.

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WITNESS Aid A TTORNE Y.

r": NOR'RIs PETERS co, WASHINGTON, n c. i

UNITED STATES PATENT OFFICE.

HENRY A. I-IUMPI-IREY, OF KANSAS CITY, MISSOURI, ASSIGNOR T SAFETY ELEVATOR LOCK AND SIGNALL COMPANY, OF KANSAS CITY, MISSOURI, A CORPORATION 0F MISSOURI.

ELEVATOR.

Specification of Letters Patent.

Patented July 5, 1910.

Application filed .Tune 24, 1909. Serial N 0. 504,085.

To all whom it may concern:

Be it known that I, HENRY A. HUMPI-IREY, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Elevators, of which the following is a specification.

My invention relates to improvements in elevators.

The object of my invention is to provide an elevator construction in which the falling of persons through open gateways in elevator shafts will be prevented.

The novel features of my invention are hereinafter fully described and claimed.

In the accompanying drawings illustrative of my inventionFigure 1 is a view, partly in elevation and partly broken away, of one of the gate locks and circuit breakers shown in the open position. Fig. 2 is a horizontal section, taken on the dotted line ab of Fig. 1. Fig. 3 is a view similar to Fig. 1, the locking mechanism and circuit breaker being shown in the closed position. Fig. 4 is a vertical section on the dotted line 0(Z of Fig. 1. Fig. 5 is a horizontal section on the dotted line ef of Fig. 3. Fig. 6 is a diagrammatic view of the different circuits. Fig. 7 is a view partly in elevation, partly in vertical section, and partly broken away, of an elevator provided with my improvement.

Similar characters of reference denote similar parts.

In the drawings which illustrate the preferred form of my invention1 denotes the elevator gates, located at the different floors and preferably of the horizontally slidable type. Each gate locking mechanism is similar to each of the others so that a description of one will suflice for all.

4 denotes the lock casing provided at its forward side with a hole 3, adapted to receive therethrough a T-shaped bracket 2 with which each gate 1 is provided. In the lock casing 1 are two parallel horizontal studs 5, mounted on a block 11, secured to the inner wall of the casing 4. On said studs are respectively pivoted two locking members 6 and 7, provided each at its forward end with a hook 8 for engaging the bracket 2 when the gate 1 is in the closed position shown in Fig. 3. The rear ends of the lockmg members 6 and 7 are respectively provided with armatures 9 and 9 located respectively in the magnetic field and at opposite ends of the vertical core of an electro magnet 10, located in the casing 41.

A horizontal, cylindrical stud 12, disposed intermediate the members 6 and 7, has its rear end secured in the block 11 and has slidably mounted on it a tube 13, to the forward end of which is secured a vertical bar 14, adapted, when the members 6 and 7 are in the locked position, shown in Fig. 3, to have its ends lie respectively in recesses 15, provided in the sides of the members 6 and 7, which are adjacent to each other. A coil spring 16 encircles the tube 13 and stud 12 and bears at its forward end on the bar let and at its rear end 011 the block 11. The spring 16 forces the bar 141 against the hooks 8 when the members 6 and 7 are swung to the open position and the gate 1 has been moved to the open position shown in Fig. 1, and holds said members in the open position until the gate is closed. Two coil springs 17 bear at one set of ends against the casing 4 and at the other set of ends against the upper and lower sides respectively of the members 6 and 7. Said springs force the members 6 and 7 to the closed position. A horizontal bar 18 is pivoted on the horizontal pin 19, mounted in a bracket 20, shown in Fig. 5, secured to the inner wall of the casing. On the bar 18 is a right angled projection, the horizontal portion 21 of which is intermediate the armature 9, and the lower end of the core of the magnet 10. The portion 21 constitutes an armature which is raised when the magnet is energized. Secured to the underside of the bar 18 but separated therefrom by insulating material 22, is a contact plate 23, adapted to rest upon two contacts 24 and 25 which are insulated from each other by a block of insulating material 26 to which said contacts are secured and. which rests upon the upper side of the bottom of the casing 4.

lVhen the parts are in the position shown in Fig. 3 and the magnet 10 is energized, the armature 21 will be moved upwardly, thus upwardly swinging the bar 18 and separating contact 23 from contacts 2% and 25, thereby breaking the circuit in which said contacts are located. The armatures 9 and 9' will then be attracted and will swing the members 6 and 7 to the open position a vertical: pin 36, and carrying at one end a 50 V V 35 "is oscillated. As the'drum '29 is rotated P so shown in Fig. '1. the gate l is now. opened the spring 16 will force the bar 14..

[into the position shown'in Fig. 1, in which 7 position the bar will retain the members 6 and 7 in the open position. The member 7, having its armature 9 located farther from the magnet 10 than the armature21, will not be swung to the open position until after .the bar 18fhas moved tothe open position. In case the contact23 should stick to the contacts 24'and 25, the bars 7 on swinging P to'the open position will, by" striking the armature 21, raise the bar 18 to the open position.

position it the magnet 10 is deenergized.

.Normally the members7 and bar 18 are inand the springs 17 will swing the members dependently swung tothe open position.

Then the "gate l is closed the bar 14 will be 'torced rearwardly into the recesses 15 6 and 7 to the closed position, with the hooks 8 engaging the bracket 2 of the'gate. The bar18 will then drop bygravity'to a position in which the contact '23 will rest on contacts 24 and 25, thus closing the circuit in which the contacts are located. I will now describe themechanism which j s operative synchronously with the elevator car, for successively energizing the magnets 10 when the car reaches the different Referring to Figs. 6 and 7, 27 denotes the elevator car, supported byth e cable 28,

whichis mounted on a drum 29, provided 1 'with ahorizontal shaft 30 on which is secured "a worm gear 31, which meshes with a which is' 'rotatively mounted a roller 3-8,

worm 32, provided on the armature shaft 33 of an electric motor 34. V 1

3-5 denotes a horizontal lever, pivoted on longitudinally movable roller arm 37, on

which is provided with a peripheral groove, adapted to receivethe cable 28. The lever V V 35 has mounted on its other end a block of insulating material 39,'to which is secured a contact 40; A plurality of contacts 41, 42 and 43, are disposed so as to'be struck successively by the contact 40 when the lever in opposite directions to raise'and'lower the r car 27, the cable 28, running onand oft from k the drum 29, will oscillate the lever 35. The

contacts 41, 42 and 43 are respectively disposedso that the contact 40 will respectively 5 rest upon said contacts" when the elevator caris at'the different floors. V

Referring particularly to Fig. 6, A, 13,.

I and C denote respectively the locking mechanisms and motor circuit controllers which are located at the diiterent floors. 44, 45 and 46denote respectively conductors which are connected at one set of ends respectively to the contacts 41f42 and143, the other set When in the open position the armature 9 will hold the bar 18 .in the open of ends being connected respectively to one .setof terminals of the windings of magnets 10 of sets A, B and C. The otherset ot' terminals of said magnets are connected respectively to conductors 47, 48 and 49, which are connected to a conductor 50, which in turn is connected to a lever 51, pivotall mounted on the floor of the car 27, and whic 1 carries a contact '52, adapted to strike a contact 53, when the operator of the car swings the lever 51 inthe proper direction. A coil spring 54, having its ends secured respectively to the car 27 and the lever 51, normally holds the lever 51 in the open p0- siti'on shown in Fig. 6. Contact 53 is connected by conductor 55 with one pole of a battery 56, the other pole of which is connected by conductor 57 with the contact 40.

Pivotally mounted on the car 27 is a controller lever 58 adapted, when oscillated, to alternately strike two contacts '59 and 60, which are respectively connected by conductors 61 and '62 with one set of terminals of two magnets 63 and 64, the other set of terminals of which are connected with each other by a conductor 65, which in turn is connected by a conductor 66 with one brush 67 of an electric generator 68,the other brush 69 of which is connected by a conductor 7 0 with a contact 71. A contact 72 is connected by a conductor 73 with the conductor 70. The conductor 66 is connected by a conductor 74 with a contact 75. A contact 76 is connected by a conductor 77 with the conductor 74.

Pivotally mounted intermediate the magnets 63 and 64 is a bar 78, having mounted thereon at opposite sides of its pivotal point, and in the respective fields of the magnets 63 and '64, two armatures 79 and 80. On the bar 78 at one side of its pivotal point, and insulated therefrom, is a contact 81, disposed intermediate and adapted to alternately strike the contacts 71 and 75. Secured to the bar 8, at the other side of its pivotal point, and insulated from said bar, is a contact 82 which is located between and adapted to alternately strike the contacts 72 and 76. Conductors 83 and .84 respectively connect the contacts '81 and 82 with the brushes 85 and 86 of the motor 34.

hen the operator entire car swings the lever 58 onto the contact 59, the current will pass from generator 68 by brush 67, conductors 66 and 65, magnet '63, conductor 61, contact 59, lever 58, and conductor 87 con- ,nected to said lever to contact 24' of set A,

to which contact conductor 87 is connected. The current will then pass through contacts 23 and 25 of said set, and thence to contact 24jof set 13 by a conductor 88 which connects saidcon'tacts. From con tact 24 of set B the current will pass through contacts 23 and 25 of said set and thence by a conductor '89 to contact 24bit set C. Thence the cur rent will pass by contacts 23 and 25 to conductor by a conductor 90, and thence through brush 69 to generator 68. Magnet 63 being energized will attract armature 79, thereby swinging bar 78 to a position in which contacts 81 and 82 will strike contacts 71 and 76 respectively. The current from generator 68 will then pass through brush 67 conductors 66, 74 and 77, contacts 76 and 82, conductor 84, brush 86, motor 34, brush 85, conductor 83, contacts 81 and 71, conductor 70 and brush 69 to generator 68.

When the lever 58 is swung on contact 60, the current from generator 68 will pass through brush 67, conductors 66 and 65, magnet 64, conductor 62, contact 60 and lever 58, and thence by the path already described, through sets A, B and C, to generator 68. The magnet 64 being energized will attract armature 80, swinging the bar 7 8 so that contacts 81 and 82 respectively strike contacts and 72. The current will then pass from generator 68, through brush 67, conductors 66 and 74, contacts 75 and 81, conductor 83, brush 85, motor 34, brush 86, conductor 84, contacts 82 and 72, conductors 7 3 and 70, and brush 69, to generator 68. Thus by oscillating lever 58 against contacts 59 and 60, the direction of the current through motor 34 may be reversed.

WVhen the car moves upwardly, if the operator swings the lever 51 to the closed position the current from battery 56 will pass as the car arrives at the different floors successively through the magnets 10 of the sets A, B and C, thereby successively breaking the circuit at different floors, thus stopping the motor at said floors and successively releasing the gates 1 at said floors.

When the car reaches the first floor contact 40 will be on contact 41 and the current from battery 56 will pass through conductor 57, contacts 40 and 41, conductor 44, magnet 10 of set A, conductors 47 and 50, lever 51, contacts 52 and 53, and conductor 55 to battery 56. Magnet 10 of set A be-' ing energized, armature 21 of said set will be attracted, thus swinging the bar 18 to break the circuit between contacts 24 and 25 of said set. If the lever 51 is not swung to the closed position, the circuit will be unbroken and the gate cannot be opened at the first floor.

When the car reaches the second floor the contact 40 will be on contact 42 and the current will then pass from the batter by conductor 57, contacts 40 and 42, con uctor 45, magnet 10 of set B, and conductor 48 to conductor 50, and thence by the path already described, back to battery 56.

When the third floor is reached, contact 40 will be on contact 43. If lever 51 is then moved to the closed position the current will pass from battery 56, through conductor 57 contacts 40 and 43, conductor 46, magnet 10 of set C, and conductor 49 to conductor 50, thence by the path described, back to battery 56.

From the above it will be understood that the gates will be locked and cannot be opened until the elevator is at the proper floor and the operator on the car has moved the lever 51 to the closed position. When this has been done the motor circuit will be broken as described, following which the gate locking mechanism will be unlocked, upon which the gate can be opened at the floor at which the car at the time is located. The operator will be unable to move the car until he has closed the gate. As no gate can be opened excepting when the car is at that particular floor, no one can fall down the elevator shaft through an open gateway of an elevator equipped with my invention.

Various modifications of my invention, within the scope of the appended claims, may be made without departing from its spirit.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is z 1. In elevators, the combination with a motor located in a circuit, of locking means, means for controlling said motor circuit, and electromagnetic means for independently moving the locking means to the open position and operating the circuit controlling means to stop the motor.

2. In elevators, the combination with a motor located in a circuit, of locking means, a gate controlled by said locking means, a car operated by said motor, means for controlling said motor circuit, and electromagnetic means operative synchronously with the car for independently moving the locking means to the .open position and operating the circuit controlling means to stop the motor.

8. In elevators, the combination with a motor located in a circuit, of locking means, means for controlling said motor circuit, and electromagnetic means for independently moving the locking means to the open position and operating the circuit controlling means to stop the motor, said locking means in the-open position retaining the circuit controlling means in the position in which the motor is stopped.

4. In elevators, the combination with a motor located in a circuit, of a car operated by said motor, a gate, gate locking means, means for controlling said motor circuit, and electromagnetic means operative synchronously with the car for independently moving the locking means to the open position and operating the circuit controlling means to stop the motor, the locking means in the open position holding the circuit controlling means in the position in which the motor is stopped.

5. In elevators, the combination with a motor located a circuit, of locking means, means for controlling said motor circuit, and

electromagnetic means for independently moving the locking means to the open positionland operating the circuit controlling means tostop the motor, said magnetic -means operating the circuit "controlling means prior to the moving of the locking Qm'eans to the open position, said locking means in the openposition retaining the controlling means in the position in which the motoris stopped.

)6. In elevators, the combination with a 7 motor located'in a circuit, of a car operated by said motor, a gate, gate locking means,

means for controlling said motor ClICIllt, and

electromagnetic means operative synchronously with the car for independently moving the locking means to the open position and-operating the circuit controlling means to stop themotor, said magnetic means oper ating the, controlling means prior'to the operation to the open position of the lockmg -means,'said locking means in the open a means 'in'the position retaining the circuit controlling stopped. 7. In elevators, the combination with amotor in an electric circuit, of locking means, electromagnetic means for moving the locking means to the open position,

'means for controlling said motor circuit operated by said'electromagnetic means to stopthe motor independently of the operation of the locking means, and means independent of the electromagneticmeans for holding the locking means in the open position.

the position in which the motor is stopped,

and means independent of the electromagneticmeans for holding the locking'means in "the openjposit-ion.

motor in an electric circuit, of a car oper ated by the motor, *a gate, "gate locking means, means for controlling said motor circuit, electromagnetic means operative syn chronously with the car for independently moving the locking means to the open posir tion andloperating the circuit controlling means to stopthe motor, and means controlled "by'the gate for holding the locking means in theopenposition; v

10. In elevators, thec ombination with a motor in an electric circuit, of locking means,

electromagnetic meansfor moving the lockposition in which the motor 9. In elevators, the combination with av ing means to the open position, means for controlling saidmotor circuit operated by said electromagnetic means to stop the motor independently of the operation of the lockingmeans, said locking means in the open position retaining the circuit controlling means in the position in which the car is stopped, and means independent of the electromagnetic means for holding the locking means in'the open position.

ELL-In elevators, the combination with a motor, in anelectric circuit, of a car operated by said motor, a gate, ate locking means, means for controlling said motor circuit, electromagnetic means operative synchronously with the car for controlling said motor circuit to stop the car and independently moving the locking means to the open position, the locking means in the open position retaining the circuit controlling means in the position in which the car is sto ped, and means controlled by the gate for holding the locking means in the open position.

112. In elevators, the combination with a motor in an electric circuit, of a car operated by the motor, a gate, gate locking means, means for controlling said motor circuit, electromagnetic means operative synchronously with the car for independently moving the locking means to the open position and operating the circuit controlling means to stopthe motor, the electromagnetic means operating the circuit controlling means prior to the operation or the locking means by said magnetic means, and means controlled by the gate for holding the locking means in the open position.

13. In elevators, the combination with a motor in an electric circuit, of means controlling said circuit, a car operated by said motor, a gate, gate locking means, electromagnetic. means for independently moving the locking means to the open position and operating saidcircuit controlling means to stop the car prior to the operation of the locking means, the locking means in the open position retaining the circuit controlling means in the position in which the car is stopped, and means controlled by the gate for holding the locking means in the open position.

14; In elevators, the combination with a motoriii an electric circuit, of gate locking meanshaving an armature, -an electromagnet for moving said armature, and circuit controlling means provided witlitan armature located intermediate said magnet and the other armature.

15. In elevators, the combination with a motor in an electric circuit, of an electromagnet, locking means having an armature operated by said magnet to move the docking means to the open position, and circuit controlling means having an armature located intermediate said niagnet and the other armature and movable by said magnet to break the circuit.

16. In elevators, the combination With a motor in an electric circuit, of locking means having an armature, an electromagnet for operating said armature to move the locking means to the open position, and circuit controlling means having an armature intermediate said magnet and the other armature and operated by said magnet to break the circuit, said locking armature, When attracted by said magnet, retaining the controlling means in the open position.

17. In elevators, the combination With a motor in an electric circuit, of means for controlling said circuit, a car operated by said motor, a gate, an electromagnet, a locking member engaging said gate movable to the open position by said magnet, said looking member having an armature in the field 20 of said magnet, the circuit controllin means having an armature intermediate said magnet and the other armature, means operative synchronously With the car by which said magnet is energized and means controlled by the gate for holding the locking member in the open position.

In testimony whereof I have signed my name to this specification in presence of tWo subscribing Witnesses.

HENRY A. HUMPHREY.

Witnesses:

F. B. DoLsEN, E. B. HOUSE. 

